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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...s far as I have concluded right now, this does not seem to affect image drawing.
//works with shapes but not with images
ctx.fillStyle = "rgba(255, 255, 255, 0.5)";
I have concluded that setting the globalCompositeOperation works with images.
//works with images
ctx.globalCompositeOperation = ...
Browser detection in JavaScript? [duplicate]
...& check(/rv:1\.9/);
var isBorderBox = isIE && !isStrict;
var isWindows = check(/windows|win32/);
var isMac = check(/macintosh|mac os x/);
var isAir = check(/adobeair/);
var isLinux = check(/linux/);
var isSecure = /^https/i.test(window.location.protocol);
var isIE7InIE8 = isIE7 &&...
Does Python have a ternary conditional operator?
...ays evaluates everything, whereas the if/else construct only evaluates the winning expression.
– SilverbackNet
Feb 4 '11 at 2:25
120
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How to change max_allowed_packet size
...k some would also want to know how to find the my.ini file on your PC. For windows users, I think the best way is as follows:
Win+R(shortcut for 'run'), type services.msc, Enter
You could find an entry like 'MySQL56', right click on it, select properties
You could see sth like "D:/Program Files/My...
How to retrieve the LoaderException property?
...
Just an FYI, if you're running a Win Service (like I am), MessageBox will not appear as UI elements are automatically blocked. Rest of implementation was helpful. Just saved to a log file instead. Thanks.
– Vippy
Sep 16...
How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
...ning to parse tcpdump output again. Thank you iftop and wireshark, for allowing me to be this lazy.
– Parthian Shot
Aug 4 '14 at 20:21
1
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Character Limit in HTML
...apt to every client's bad HTML implementation, it's an impossible fight to win. That's why it's far better to check it on the server side, with a PHP / Python / whatever script.
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Eclipse - no Java (JRE) / (JDK) … no virtual machine
...used in production.
June 2012, jmbertucci comments:
I'm running Windows 7 64-bit and I had the 32-bit JRE installed.
I downloaded Eclipse 64-bit which looks for a 64-bit JRE.
Because I didn't have the 64-bit JRE it threw the error, which makes sense.
I went to the Java manual in...
How to initialize private static members in C++?
... one of our .cpp files? It will compile fine and we will have no way of knowing which one wins until we run the program.
Never put executed code into a header for the same reason that you never #include a .cpp file.
include guards (which I agree you should always use) protect you from something di...
How to give ASP.NET access to a private key in a certificate in the certificate store?
...n that accesses private key in a certificate in the certificates store. On Windows Server 2003 I was able to use winhttpcertcfg.exe to give private key access to the NETWORK SERVICE account. How do I give permissions to access a Private Key in a certificate in the certificate store (Local Computer\P...